Results 71 to 80 of about 1,900,467 (218)

MIXING METALS UNDER STRIPPING GALACTIC GASEOUS HALOES: RADIATIVE LOSSES

open access: yesOdessa Astronomical Publications, 2008
We present two-dimensional numerical model for mixing of metals in the intergalactic medium under stripping of a galactic gaseous halo both in adiabatic and radiative cases.
S. Yu. Dedikov   +2 more
doaj   +1 more source

Discovery of Optically Emitting Circumgalactic Nebulae around the Majority of UV-luminous Quasars at Intermediate Redshift

open access: yesThe Astrophysical Journal
We report the discovery of large, ionized, [O ii ]-emitting circumgalactic nebulae around the majority of 30 UV-luminous quasars at z = 0.4–1.4 observed with deep, wide-field integral field spectroscopy with the Multi-Unit Spectroscopy Explorer (MUSE) by
Sean D. Johnson   +17 more
doaj   +1 more source

Observational Predictions for the Survival of Atomic Hydrogen in Simulated Fornax-like Galaxy Clusters

open access: yesThe Astrophysical Journal
The presence of dense, neutral hydrogen clouds in the hot, diffuse intragroup and intracluster (IC) medium is an important clue to the physical processes controlling the survival of cold gas and sheds light on cosmological baryon flows in massive halos ...
Avinash Chaturvedi   +6 more
doaj   +1 more source

The Intergalactic Medium

open access: yes, 2000
About half a million years after the Big Bang, the ever-fading cosmic blackbody radiation cooled below 3000 K and shifted first into the infrared and then into the radio, and the smooth baryonic plasma that filled the Universe became neutral. The Universe then entered a ``dark age'' which persisted until the first cosmic structures collapsed into ...
openaire   +2 more sources

Cosmological Blast Waves and the Intergalactic Medium [PDF]

open access: yesThe Astrophysical Journal, 1996
Winds from protogalactic starbursts and quasars can drive shocks that heat, ionize, and enrich the intergalactic medium. The Sedov-Taylor solution for point-like explosions adequately describes these blastwaves early in their development, but as the time since the explosion ($t - t_1$) approaches the age of the universe ($t$), cosmological effects ...
openaire   +2 more sources

Simulating supernova feedback in galaxy disks [PDF]

open access: yes, 2012
In this thesis I examine supernova feedback in hydrodynamical simulations of galaxy disks. Understanding this process entails the numerical evaluation of cooling in radiative shocks, and we present a set of simulations using two widely used numerical ...
CREASEY, PETER,EDWARD   +1 more
core  

Future instrumentation for the study of the warm-hot intergalactic medium [PDF]

open access: yes, 2008
We briefly review capabilities and requirements for future instrumentation in UV- and X-ray astronomy that can contribute to advancing our understanding of the diffuse, highly ionised intergalactic ...
Nevalainen, J.   +13 more
core   +2 more sources

Utilizing the Dispersion Measure of Fast Radio Bursts to Probe the Intergalactic Medium Turbulence

open access: yesThe Astrophysical Journal
Extragalactic fast radio bursts (FRBs) have emerged as powerful probes of turbulence within the intergalactic medium (IGM), a phenomenon that plays a crucial role in various cosmological and astrophysical processes. In this study, we employ the structure
Rui-Nan Li   +5 more
doaj   +1 more source

The Temperature Structure of the Warm-Hot Intergalactic Medium

open access: yes, 2019
We study the temperature structure of the intergalactic medium (IGM) using a large cosmological N-body/ smoothed particle hydrodynamics simulation.
Furlanetto, Steven R.   +2 more
core   +1 more source

Bird's-eye View of Molecular Gas across Stephan's Quintet Galaxy Group and Intragroup Medium

open access: yesThe Astrophysical Journal
We present the large-scale distribution and kinematics of cold molecular gas across the compact galaxy group Stephan’s Quintet, based on CO(2–1) observations performed with the Atacama Compact Array (ACA) and CO(1–0) data from the Combined Array for ...
B. H. C. Emonts   +17 more
doaj   +1 more source

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